Two problems related to air conditioner have been reported for the 1999 Ford F-150. The most recently reported issues are listed below.
There was no waring or sounds indicating a problem. A/c started blowing hot air, I pulled over and looked under the hood and found the compressor on fire. This could have had a devistating ending had my wife been driving because she would have kept going. This is very upseting to think of what could have happened. This could have very easily ended my family had the truck totally caught on fire with my wife driving with our children.
There is a crack on the driverside door where the widowsill starts to curve. I have had it welded once and it reappeared the same day I got my truck home. The air conditioner smells like mold whenever I use it. It has been worked on five times to correct the problem but it still persists.